Synergy of cymoxanil and mancozeb when used to control potato late blight |
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| Authors: | A Evenhuis H T A M Schepers C B Bus W Stegeman |
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| Institution: | (1) Research Station for Arable Farming and Field Production of Vegetables, P.O. Box 430, 8200 AK Lelystad, The Netherlands;(2) DuPont de Nemours (Nederland) BV, P.O. Box 145, 3300 AC Dordrecht, The Netherlands |
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| Abstract: | Summary Synergism between fungicides could be used to reduce the application dosage. Synergism between cymoxanil and mancozeb was
studied using potted potato plants under field conditions. In three experiments the preventive efficacy of the fungicides
and fungicide mixtures in the treatments were studied using a bio-assay. Potato plants were sprayed with the fungicides or
fungicide mixtures. Leaves were picked from the potato plants with regular intervals after fungicide application. The efficacy
of the fungicides was studied in a bioassay by inoculating the leaves withPhytophthora infestans zoosporangia. The Abbot method was used to show synergistic effects of the cymoxanil/mancozeb mixtures tested. In two of
three experiments synergy of the fungicide mixtures was found. |
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| Keywords: | fungicides Phytophthora infestans Solanum tuberosum L |
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